Computing-machine.



. PATENTED MAY-26, 1908. J. T. UEBBING & H. MARSHALL.

COMPUTING, MACHINE. APYPLIOATION JILED FEB. 5, 1907.

2 SBEETS-SHBET 1.

JOSEPH T. UEBBING, OF CLEVELAND, OHIO,

ASSIGNORS TO ADDOGRAPH MANUFACTURING YORK.

AND HOLMES MARSHALL, OF NEW-YORK, N. Y.,

COMPANY, A CORPORATION OF NEW COIVIPUTING-WIACHINE Specification of Letters Patent.

Eatente'd May 26, 1908.

Application filed February 5, 1307.. Serial No. 355,867.

To all whom it may concern:

Be it known that we, Josnrn T. Ueunmo and lloLMns MARSHALL, citizens of the United States, residing at Cleveland, Ohio, and New York city, New York, respectively, have invented certain new and useful improvements in Computing-Machines, of

; which the following is a. clear, full, and exact description. 1 v v The object of this invention to provide an improved means for setting to zero the wheels of adding or computing machines such as shown in the U'. S. Patent No. 800,810 granted to Marshall & Uebbing, and a further object is to accompany such setting to zero with a printing mechanism for recording the osition occupied by the various wheels be ore such setting to zero.

Our invention will be pointed out in the claims.

v in the drawings, Figure 1 is a. partial side elevation of one unit 01 a computing mschine of our prior patent herein referred to, pro-- vided with the devices of this invention; Fig. 2 is a section on line 2'-2 Fig. 1 showing two such units and a, controlling disk of s third; Fig. 3 is a plan view on line Fig.1 taken between the uprights hereinafter re ferred to, and Fig. 4 18 a detail of the reset ting wheels.

Al's shown in the drawings each structural unit of the machine may be comoosed of s frame 1 in which an indicator she 2 end an operating shaft 3 is located. On the indicator shaft there arelocated'gesr wheels 4 one of which only is shown in the drawings, but it will be understood that a number of these are. usually supplied in machines of this chsract-er, one. on the shaft 3 there are located e number of wheels hsvin difierent numbers of teeth, es plainly disc osed in the potent above referred to. For the sake of convenience, in the present improvement we show only fine, namely, the wheels having nine teeth. These wheels constitute connecting mechsnisms hormelly incapable of osusing /the operation of the indicator from the operating snsitc A key 7, one or s series, is pro- I vided to control a detent 8 pivoted st 9 in breckets 10 in'the top plste ll of the maehine and constitutes a selective mechanism for permitting the engagement. of the gear 4 of the indicator with the whee. of the operstin shaft 3 silos shown in the potent herembefore referred to.

known as the indicator resetting disk.

Upon the indicator shaft 2 there is carried between uprights 12 and 13 three disks, 14

constituting a controlling means for permitting a carrying to the next higher denominotion and provided with one tooth 15 to operetc a. controlling lever 16 of the next denomination. The relative position of the numeral indications of the indicator shaft 2 to the currying disk 14 is shown by the radial lines in Fig. 2 leading to the figures 9, O and 1 inclosed within circles. A com disk 14 carried by an adjacent frame, similar to frame 1 is shown diugrmnmuticslly at the left of Fig. 2. Disk .17 which is e gear wheel preferably of ten teeth, is slidsvble on the shaft but normally held from sidewise motion by a detent spring 18 operated by such at controlling lever 16, as that before described, and operated from a. single toothed disk'll of the next lower denomination, and a disk 20 having a cutaway portion 21 as shown in Fig. 4 and The toothed indicator resetting disk 20 is slidable on its shaft and, is normally held from sliding by a ,detent spring 22 provided. with an arm Springs 24; and 25 on two levers 26 and 2? serve t1 tend to shift such disks 17 and 20 always sidewise u on their shaft. On the operating shaft 3 tliere are mounted two disks 28 and 29 fired in position, one a disk 28 having one tooth 30 and is known as a cerrying forward disk, and the other 29 a gear wheel having a cut-sway portion 31 and known as a. resetting disk. The operation of this resetting device is clearly described in the potent referred to, and only itsreletion to the present improvement is set forth in this application. lhe resetting: disks 29 on all denominations may be the some in position, but the carrying forward disks 28 on successive denominations should have their single tooth 30 in advanced position as shown in Fig. 2.,

the denomination at the left to be tens and the wheelfi shown to be the ninth connecting wheel, then the single tooth 30 should be positi'oned as shown so thstlit would operate shortly after the lost movement of the indiin that, figure assumirw cuter shaft 2 csuscd by the ninth tooth of the connecting wheel 6, to rotate it an additionel tooth by engagement by the disk 28 ofthe genial? which gear 17 will have been o erate until the tens had carried and shifted successful ycarry t e hundreds to zero releasing the carrying gear wheel 17, so that upon the successive operation of the single tooth of the hun dreds carr ing disk 28 the hundreds unit will one to the thousands as will be readily understood.

N ow as we prefer that this type of machine should set forward to zero, it Wlll be obvious that one must prevent a carryin forward during such operation or one woul have the digit 1 resulting instead of zero insome cases. Consequently we provide what we term an error preventing mechanism for the resetting mechanism which is aria ted to render inoperative the carrying f rward mechanism upon the operation of the resetting mechanism. Qur preferred form of this error preventin mechanism consists of an extension 31 to t e lever 26 having a depending hw- 32 and an u wardly extending in 33. he downward y depending lug 32 ism the ath of a stud 33 on a'rocker 34 ivo'ted to a b ock 35 on the bed plate 36 and connected by a lever 37 with a shaft 38 running parallel with the operating shaft 3 and actuated by a lever 39 on a rock shaft 40 which is o erated from a resetting lever 41 operated w ien' it is desired to reset the apparatus. The upwardly extending lug 33 engages an arm 23 o the detent 22 controlling the position of the resetting gear 20 onthe indicator shaft 2, so that upon rotating the related mechanism on its plvot the detent 22 will release the resetting wheel 20 and at the same time move the controlling lever 26 and its sprin 24 away from the carrying forward gear 17 leaving it in inert position upon its shaft, where it will not come into the path of the sin le tooth 30 of the carrying forward disk 28 during its rotation. It will be obvious by reference to applicants previous patent above cited that by operating shaft 3 makes one complete revolutron to an operation.

As stated herein, a further object of the invention is to leave a record of the last position of the indicators prior to resetting. his is accomplished by placing a resilient platen 42 beneath the indicator head 43 and providing a roller 44 on an arm 45 fixed to a rock shaft 46 connected by a lever 47 with the transverse rod 38 of the resettingmech anism, and providing a second reverse set 48 of around the head of the indi-; piece of paper placed l e cater so that a tween the resilient platen a2 and reverse fi ures 48 will receive an im ression u on operation or? the resetting mechanism and prior to the o eration of the o crating shaft.

In Fig. 1 have shown a lland lever 50 fast to the shaft 46- and a spring tending to return the of that figure. The construction makes it possible not only to do the printing before 51 always setting to zero automatically, as before described; but it enables one to print a artial result during an operating at Wlll am independently of the resetting mechanism.

"We claim as our invent1on:

1. In a computing machine comprising an indicator, an operating shaft for the same, a connecting mechanism between said indie cater and said shaft and normally incapable of operating said indicator, a selective mechanism for said connectin mechanism, a carrying means controlled y said indicatorshaft to the position 1 IIlGCHMIlSm for carrying a figure to a higher indicator, in cbmbination with a resetting mechanism and an error-prevent1ng mechanism adapted to render the carrying means inoperative upon the operation of the resetting mechanism.

2. In a computing machine comprising an indicator, an operating shaft for the same, a connecting mechanism between said indicater and said shaft and normally incapable elf-operating said indicator, a selective mechanism for said connecting mechanism, a carrying means controlled y said indicator mec anism for car ing a figure to a higher indicator, in combination with a resetting mechanism and an errcrelprevcnting mecl1- anism adapted to render t e carrying means inoperative upon the operation of the resetting mechanism, said related mechanism com rising a system of levers, adapted to simu taneously connect the setting means and disconnect the carrying means.

' 3. In a computing machine comprising an indicator, an operating shaft for the same, a connecting mechanism between said indicator and said shaft and normally incapable of operating said indicator, a selective mech anism for said connecting mechanism, a carrying means controlled by said indicator cator and said shaft and normally-incapable a connecting mechanism between said indiof operating said indicator, a selective mechanism for said connecting mechanism, a carr ing means controlled by said indicator mec 'anism for carrying a figure to a higher indicator, printing characters carried on said indicator and a platen therefor adapted to print upon operation for setting to zero. 5. In a computmgmachme comprising an indicator, an operating shaft for the same,

- a connecting mechanism between saidindicator and said shaft and normally incapable of operating said indicator, a selective mechanism forsaid connecting mechanism, a carrying means controlled by said indicator mechanism for carrying a figure to a higher indicator, printing figures on said-indicator and a platen therefor operatively connected with the resetting mechanism.

6. In a computing machine comprising an indicator, an operating shaft for the same,

cator and said shaft and normally incapable. of operating said indicator, a selective mechanism for said connecting mechanism, a

carrying means controlled by saidindicator mechanism for carrying a fig'ure to a higher indicator, printing characters carried on said indicator and a platen therefor adapted I to print upon operation for setting to zero,

in combination with means for independently' printing at will Without setting to zero.

Signed at Cleveland 0., this 31st day of January 1907.

JOSEPH T. UEBBlNG. HOLMES MARSHALL. Witnesses to Joseph 'l. Uebbin-g' WALTER J. HAMlLTON, H. D. SMITH. Witnesses to Holmes Marshall:

F. W. l/Vnrurrr, BEA'rmcE Mnmis. 

